Muffler



SEST AVALABLE CCP F. A. WHITTEN.

MUFFLER.

APPLICATION FILED JUNE 17. i919.

Patented July 1l, 1922.

2 SHEETSMSHEET l.

71:11am it WALLJL'LGH, www www f /f 'l l r l F. A. WHITTEN.

MUFFLER.

APPLIcAloN FILED JUNE 17, 1919.

1,422,403. Patented July 11, 1922.

2 SHEETS-SHEET 2.

3 www1/tof@ anowww bien havindghho atth r lower ends through which supporting bolts 2l extend. The referen iiun'er als- 2 2ffdesigna'te 1vsemieircular clamps arraii'rgedifi'pairs at'each-'e'n'd' of the 5 tube l5, said clamps having ears 23 at their.,

upper and lower ends. The support-ing bolts 2li through 5the holes invthe upper ears lclamping bolts 24 extend through the ears atnthe lower-rends of eachepairyof.,vsemifcirfi culanielamps land Serve to? draw; l the lower endsgofsaid clamps together,and secure the mufllerjt-ubeiilr piacere-HJ.

e [Ilhe supporting members 1 'abo-ve ldescribed arefaobviouslymadeg-,up each i of. three pieces. In ithe. f ormlof muffler Support illustrated .in

Figurer l0, however; the'isupporting member. is; {made alpx lof twv-.0;pieces-y only.; the main eport0n-i25fwvhich isz secured, tojthe frame member {2G-having, alcurved klower-portion of porting membei-.byfboltsf 28 'at itsye'nds.

' lThesupporting member'sthu-s provided.

a-reareferitedf to ,asi collapsible becauseiof Vthe factlthat the'actionfof the 'clamping bolts 24E drayvsithe; flower@ Eends. fof.4 ithe -clamps 22 .i toward ne-,anotherand forces theiriunersurfaesl finto .icontactI wiiththe peripheral wall ofithermufilergtubeat the ends thereof 'and stlfus; holdsz the tubular membery 15in (place, inutile-.form `off-my invention illustrated in' lfifgure 1lrtol.6;andr-.a similar clamping action obviously results when the bolts of the'formfof'my; invention illustrated in Fig- 40ur`e l() aretighten'edaf-I ir y liThe depending wallsv or.. flanges-16 of-the tubularq member l5 ya're =provided .with semicircularrecesses adjacent the'ends of the tube 'and within `which recesses the clamptE ing bolts .-24 lie when the parts are assembled. which recesses-serve toposition the lower endsfofv the semi-circular clamps and vthe bolts 2liv properly before the tightening `of the bolts to secure the partsin -their final 50... positions; as well also as to prevent relative movementbetween the clamps and the tube if .the clamping-bolts varenot .tightened sufficiently to preventv such movement b v the resulting engagementbetween the inner sur- '5'5f faces oftheclampsland the exterior surface of the muffler tube. y; I

The reference. numeral l29` designates an exhaust lconduit leading from` the.;en'gine, and .whichaobvi'ously forms-aninlet conduitthrough which the exhaust gases flowginto theinterior of kthe `mufller tube l5, the end of; said, conduit 29 fitting 4within the .rightl'iand-endbf..thesaid tube as bestshownin Figures i5 and l0. It therefore follows that 165i the act. oftightening the semi-circular clamps 22, or the yblre 27;v willV force the-:Iiight-hand end of the muffler tube into firm engagement with' the yfendi ofthe' conduit 29; andfthereby hold the partsin permanent fixed .relation relative one to the other.

' The left-hand end of the muffler tube l5 is "shown in Figures l. 3 and 6 as closed by a "headSOf which head is likewise held inplaee withiny the left-handend of the muffler tube by the clamping action which follows the drawing together-.of` the..lower.2.ends .of-.the` semi-circular 'clamps -22 at :the leftsliand end of the tube by the,clampingr-b'olt,X251,.flfhe1 left-hand.v pair o f clamping members...-\wil `l,. also preferably sbe -2 provided; each with j a. lug j SQ 3.1, ,which lugs. overliethe end iwalllbffthe" i' head 30 and serve.tofmore.effectivelyprefi vent. displacement of said A.head I.ifflcgr veX- ample, the clampsatthatendof the rtubelare not sufficiently .tightened,' orif. they; should-(8f, L beoomeflooseaduringthe. use ofLthellevicel;y i A Figures .7, 8. and 9 Sheath@ .tubeisndlns head.32 as made. fronifa sheet =or thing plate metal ,stamping .the E peripheryg lof: whchals .l turned" up tory form a ,flang/e, andias l(1el. l., i 11.99i place withinv the endofjtlieI tubqby; spot-1 welding the flange and tubelwallto etheryat 33 inFigure 7', andv by rivets Iin I.lfggure 8 5. the holding-*means being preferablyzupon: upper side of the tube and oppositefthe; pas'- 9 i sage leading therefrom..so :thatfthersixdes thereof may be forced.againsttheperipheral wall of the head ,when fthe bolts E24 or 28-are tightened,l as will .beunderstood;gy Q

Figure l2 shows a muffler in Whiclrt lello() opening extending along the mufllertubeil is wider than in the forms goffmy inventionv shown in the other figures, and as .havin'giaiz spreader 35 extending longitudinally. ofthe opening and secured in place; by y longerllo rivets 36 extending through thefiangesland the said spreader; 'the:spreaderqbeing made from aA folded: strip .'ofsheet' metalll and spaced apart from the adjacentfflan es 17 b vspacers 37. In thisform Iof mu' er 110 the escaping exhaust gases arel divided into two streams by the spreaden'which streams are directed away one from the otl'ierbyfthe flaring walls 17 of the tube and thesimilarly shaped side walls of the spreader and be- 1.15 tween each two adjacent walls anv expanding outlet or nozzle is secured, thereby furtherv reducing the noise incident vto theexhaust gases escaping into the atmosphere.

Having thus described and explained my invention` l claim and desire to secure by'. Letters Patent: ,y

l. A muffler consisting of a tubular .member of substantially uniform area l,throughout its length and having two flanges ex-,12l5 tending out-wardly'from its periphery vand longitudinally. thereof and-throughout ,the length of the muffler, and which flangesare'y spaced apart from one another to thereby provide an outlet passage between them," t

AWlL/-UL CCP?" 2. A mufller consisting of a tubular member circular in cross-section and of substantially uniform area throughout its length, and having two flanges extending outwardly from its periphery, and longitudinally throughout the entire length thereof, and which flanges are spaced apart from one another to thereby provide an outlet passage between them; and a series of fastening members extending through Said flanges and spaced apart from one another.

3. A" mufller of the class described comprising a tubular member having two flanges extending outwardly from its periphery and longitudinally thereof, and which flanges are spaced apart from one another to thereby provide an outlet passage between them; two collapsible supporting members located one at each end of said tubular member; an inlet conduit fitting within one end of said tubular member; a head fitting within the other end of said tubular member; and means for collapsing said supporting members to thereby clamp said inlet conduit and said head in place.

4. A muffler of the class described comprising a tubular member having two flanges extending outwardly from its periphery and longitudinally thereof, and which flanges are spaced apart from one another to therebyT provide an outlet passage between them; two pairs of semicircular clamps located one pair at each end of said tubular member, and which clamps are provided with oppositely disposed ears having holes through which bolts may extend; two supporting brackets the lower ends of which lie between the ears at the upper ends of each pair of clamps, and which supporting members are provided each with a hole through which the bolt at the upper end of said semi-circular clamps extends; clamping bolts extending through holes in the ears at the lower ends of said pairs of-clamps; and notches provided in said flanges and within which notches said lower pair of bolts lie when the parts are assembled.

5. A muffler of the class described comprising a tubular member having two flanges extending outwardly from its periphery and longitudinally thereof` and which flanges are spaced apart from one another to thereby provide an outlet passage between them; two clamping members located one at each end of said tubular member and havingr oppositclv disposed ears provided with holes through which clamping bolts may extend: and two supporting brackets the lower ends of which lie between the ears aforesaid, and are provided each with a hole through which a supporting bolt extending through the holes in the ears aforesaid may pass.

6. A muffler of the class described comprising a tubular member having two flanges extending outwardly from its periphery and longitudinally thereof, and which flanges are spaced apart from one another to thereby provide an outlet passage between them: a conduit leading into said tubular member; a head located within the end of said tubular member opposite said conduit; two semicircular clamping members engaging said tubular member adjacent said head; lugs carried by said clamping members and extending over the end wall of said head; means for securing said clamping members together; and a supporting bracket whereby said clamping members are supported. Y

7. A muffler of the class described comprising a tubular member having two flanges extending outwardly from its periphery and longitudinally thereof, and which flanges are spaced apart from one another to thereby provide an outlet passage between them; a conduit leading into said tubular member; a head located within one end of said tubular member; supporting means engaging said tubular member adjacent said head; and a lug carried by said supporting means and extending into a position so as to overlie the end of said head.

8. A mufller of the class described comprising a tubular member having two flanges extending outwardly from its periphery and longitudinally thereof, and which flanges are spaced apart from one another to thereby provide an outlet passage between them; a conduit leading into said tubular member; a head located within one end of said tubular member: a collapsible supporting member engaging said tubular member adjacent said head; and means for collapsing said supporting member to thereby force the wall of said tubular member against the periphery of said head.

9. A muffler of the class described comprising a tubular member having two flanges extending outwardly from its periphery and longitudinally thereof, and which flanges are spaced apart from one another to thereby provide an outlet passage between them; a conduit leading into said tubular member; a head located within one end of said tubular member; a collapsible supporting member engaging said tubular member adjacent said head; means for collapsing said supporting member to thereby force the wall of said tubular member against the periphery of said head; and means independent of the engagement between said supporting member and the periphery of said head and located opposite the outlet passage aforesaid for securing said head in place within the end of said tubular member.

In testimony whereof I affix my signature.

FRANK A. WHITTEN. 

